1: 5 operators
RESULT = B ^ (A ^ B)*(A > B)
2: 13 operators
RESULT = B ^ (A ^ B)*(A > B) ^ (A ^ C)*(A > C) ^ (B ^ C)*(B > C)
3: 27 operators
g = 47|((0x00ffffff & A)>>10)|(A>>14)
r = (g + A/g)/3
r = (r + A/r)>>1
r = (r + A/r)>>1
r = (r + A/r)>>1
RESULT = r - (r*r-1>=A)